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(struct alias_info): Add new field ref_all_symbol_mem_tag.
* tree-ssa-alias.c (compute_may_aliases): If the program contains
ref-all pointers, run a finalization pass for them.
(compute_flow_insensitive_aliasing): Skip ref-all pointers.
(finalize_ref_all_pointers): New function.
(is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
regular pointer type to a ref-all pointer type.
(get_tmt_for): Return the special memory tag for ref-all pointers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114116 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112979 138bc75d-0d04-0410-961f-82ee72b054a4
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delete_alias_info, compute_flow_sensitive_aliasing,
group_aliases): Use VEC instead of VARRAY.
* tree-ssa-structalias.c (update_alias_info): Likewise.
* tree-ssa-structalias.h (alias_info): Change the type of
processed_ptrs to VEC(tree,heap) *.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112903 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
(ssa_ro_call_cache_valid): Ditto.
* tree-ssa-alias.c (sort_tags_by_id): New function.
(init_transitive_clobber_worklist): Ditto.
(add_to_worklist): Ditto.
(mark_aliases_call_clobbered): Ditto.
(compute_tag_properties): Ditto.
(set_initial_properties): Ditto.
(compute_call_clobbered): Ditto.
(compute_may_aliases): Call compute_call_clobbered and grouping.
(compute_flow_sensitive_aliasing): Remove clobbering related code.
(compute_flow_insensitive_aliasing): Grouping now happens in our
caller.
(setup_pointers_and_addressables): Remove clobbering related code.
(add_may_alias): Ditto.
(replace_may_alias): Ditto.
(get_nmt_for): Ditto.
(create_global_var):
(is_escape_site): Return an escape_type enumeration.
* tree-flow-inline.h (is_call_clobbered): Global var does not
imply call clobbered.
(mark_call_clobbered): Take a reason for marking this. Remove
marking of globalness, and cache invalidation.
(clear_call_clobbered): Remove cache invalidation code.
* tree-dfa.c (dump_variable): If details is on, dump the reason
for escaping.
* tree-outof-ssa.c (create_temp): Copy escape mask from original
variable.
* tree-flow.h (struct ptr_info_def): Add escape mask member.
(struct var_ann_d): Ditto.
(enum escape_type): New.
(mark_call_clobbered): Adjust prototype.
* tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
are never call clobbered.
Record reasons for escaping.
* tree-ssa-structalias.h (is_escape_site): Update prototype.
* tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
(ssa_ro_call_cache_valid): Ditto.
(clobbered_v_may_defs): Ditto.
(clobbered_vuses): Ditto.
(ro_call_vuses): Ditto.
(clobber_stats): New.
(init_ssa_operands): Zero out clobber stats.
(fini_ssa_operands): Print out clobber stats.
(get_call_expr_operands): Pass callee fndecl to
add_call_read_ops).
(add_call_clobber_ops): Remove use of cache.
Add use of PURE_CONST information.
(add_call_read_ops): Remove use of cache.
Add use of static not_read information.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@109938 138bc75d-0d04-0410-961f-82ee72b054a4
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* tree-cfg.c (CHECK_OP): Only test for is_gimple_val.
* tree-dfa.c (dump_subvars_for): New.
(debug_subvars_for): New.
(dump_variable): Show subvariables if VAR has them.
* tree-flow-inline.h (get_subvar_at): New.
(overlap_subvar): Change offset and size to unsigned HOST_WIDE_INT.
* tree-flow.h (struct ptr_info_def): Remove field pt_malloc.
Update all users.
(struct subvar): Change fields offset and size to unsigned
HOST_WIDE_INT.
(dump_subvars_for): Declare.
(debug_subvars_for): Declare.
(get_subvar_at): Declare.
(okay_component_ref_for_subvars): Change 2nd and 3rd argument
to unsigned HOST_WIDE_INT *.
(overlap_subvar): Likewise.
* tree-gimple.c (is_gimple_reg): Always return false for
SFTs and memory tags.
* tree-pass.h (pass_build_pta, pass_del_pta): Remove.
Update all callers.
* tree-ssa-alias.c: Include tree-ssa-structalias.h.
(compute_may_aliases): Call compute_points_to_sets.
(collect_points_to_info_for): Remove.
(compute_points_to_and_addr_escape): Remove.
(delete_alias_info): Call delete_points_to_sets.
(compute_flow_sensitive_aliasing): If the call to
find_what_p_points_to returns false, call set_pt_anything.
(add_may_alias): Set TREE_ADDRESSABLE when adding a new alias.
(set_pt_anything): Clear pi->pt_vars.
(set_pt_malloc): Remove.
(merge_pointed_to_info): Remove.
(add_pointed_to_expr): Remove.
(add_pointed_to_var): Remove.
(collect_points_to_info_r): Remove.
(is_escape_site): Make extern.
(create_sft): New.
(create_overlap_variables_for): Call it.
* tree-ssa-copy.c (merge_alias_info): Never merge
flow-sensitive alias information.
* tree-ssa-operands.c (get_expr_operands): Adjust variables
offset and size to be unsigned HOST_WIDE_INT.
(add_to_addressable_set): Rename from note_addressable.
Set TREE_ADDRESSABLE as the variables are added to the set.
Update all users.
(add_stmt_operand): Do not try to micro-optimize unmodifiable
operands into VUSEs when adding V_MAY_DEFs for members in an
alias set.
* tree-ssa-operands.h (add_to_addressable_set): Declare.
* tree-ssa-structalias.c: Include tree-ssa-structalias.h last.
(struct variable_info): Add bitfield is_heap_var.
(var_anyoffset, anyoffset_tree, anyoffset_id): Declare.
(new_var_info): Initialize is_heap_var.
(get_constraint_for): Add HEAP variables to the symbol table.
Mark them with is_heap_var.
(update_alias_info): New. Taken mostly from the old
compute_points_to_and_addr_escape.
(handle_ptr_arith): New.
(find_func_aliases): Call update_alias_info.
Call handle_ptr_info for tcc_binary expressions.
Call mark_stmt_modified.
(create_variable_info_for): If DECL has subvars, do not create
variables for its subvars. Always add all the fields.
(set_uids_in_ptset): If the solution includes ANYOFFSET and
SFTs, then add all the SFTs of the structure.
If VI->DECL is an aggregate with subvariables, add the SFT at
VI->OFFSET.
(find_what_p_points_to): If VI is an artificial variable,
translate to bitfields in SSA_NAME_PTR_INFO.
If the solution is empty, set pi->pt_vars to NULL
(init_base_vars): Create ANYOFFSET.
(compute_points_to_sets): Rename from create_alias_vars.
Make extern.
(pass_build_pta): Remove.
(delete_points_to_sets): Rename from delete_alias_vars.
(pass_del_pta): Remove.
* tree-ssa-structalias.h (struct alias_info): Move from
tree-ssa-alias.h.
(NUM_REFERENCES, NUM_REFERENCES_CLEAR, NUM_REFERENCES_INC,
NUM_REFERENCES_SET): Likewise.
(compute_points_to_sets, delete_points_to_sets): Declare.
testsuite/ChangeLog
* gcc.dg/tree-ssa/pta-fp.c: Use -fdump-tree-alias1.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101841 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101317 138bc75d-0d04-0410-961f-82ee72b054a4
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output.
(dump_sa_points_to_info): Make extern.
(debug_sa_points_to_info): New.
* tree-ssa-structalias.h (TREE_SSA_STRUCTALIAS_H): Rename from
TREE_ALIAS_COMMON.
(dump_sa_points_to_info): Declare.
(debug_sa_points_to_info): Declare.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100987 138bc75d-0d04-0410-961f-82ee72b054a4
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* Makefile.in (OBJS-common): Add tree-ssa-structalias.o.
* tree-flow.h (find_what_p_points_to): Add prototype.
(push_fields_onto_fieldstack): Ditto.
(sort_fieldstack): Ditto.
* tree-optimize.c (init_tree_optimization_passes): Add
pass_build_pta and pass_del_pta.
* tree-pass.h (pass_build_pta): New structure.
(pass_del_pta): Ditto.
* tree-ssa-alias.c (compute_flow_sensitive_aliasing): Disambiguate
using new alias analyzer.
(push_fields_onto_fieldstack): Removed from here.
(bitpos_of_field): Ditto.
(fieldoff_compare): Ditto.
* tree-ssa-structalias.c: New file.
* tree-ssa-structalias.h: Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100800 138bc75d-0d04-0410-961f-82ee72b054a4
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